Universal digital filter for noisy lines

Universal duty cycle adjustment circuit

Universal input circuit including opto-isolator and retriggerabl

Universal on-chip initialization circuit

Universal programming interface for clock generators operable in

Universal pulse synchronizer

Universal serial bus driver having MOS transistor gate capacitor

Unlimited phase tracking delay locked loop

Upscaled clock feeds memory to make parallel waves

Use of analog-valued floating-gate transistors to match the...

User controlled reset circuit with fast recovery

User-controlled delay circuit for a programmable logic device

Using a push/pull buffer to improve delay locked loop...

Using active circuits to compensate for resistance...

Using asynchronous FIFO control rings for synchronous systems

Using power-on mode to control test mode

Using storage elements with multiple delay values to reduce...

Using the internal supply voltage ramp rate to prevent premature

Using thick-oxide CMOS devices to interface high voltage...